Intake manifold for internal-combustion engines



'r1 S. BENJAMIN.

MAKE MANIFOLD FOR WTERNAL Comsuslor. ENQINES.

APPlICAT'OM FllED {vH-R 27.192'0.

Pa'ente Oct. 10, 1922?..

H. S. BENIAIVIIN.

INTAKE MANIFOLD FOR INTERNAL COMSUSTION ENGINES. APP' ICATION FILED II'IA'IIA 27, 1920.

1,431,281. Patented Oct. 10, 1922.

2 SHEETS--SHEET 2.

WIM d i i i E! im@ Mi? L@ o .Won

QB BENEAMN, GE* DEER-91T, lfEIKCHEGJM, ASSTLGNJE, T0 BENJAMHW if. siuozooois oosimsn, os osfizsow, Misfiosm, s. oosiomsmoii ois' DELAWARE.

sssiimoso Fons.. Ym'massiAL-oosfimrsmozo @mimos sppiieaiion sied march s?, issu. semi sie. .To aZZw/lmm' may somo/vi: opper Wall of the passages and be hesiod,

Es ii known inlaat l; Hays?? S. TBENJAMIN; (expanded and moor-sized :it glial; point, and. a oitizeii of bho United Elta-nes, residing si. thence be Eliza-sched outward also to the iii- Qfmit, in am Oumy 0f- "Way and Simo takes m? Whore tho vapor passing through of Michigan, havekiiarenisd @simio new and 'olio bmimlios 5 is 'intimately comingled 60 useful lmpi'ovomoii in iiialzo Manifolds ilisewitlri oo zhe Way io'jho cylinders o'ihe. for lniiomalomliosion Engines, of which oxgmo. Within ills passage is o peculiarly @hg -fuowng is a dewgmq, formed volvo 9 aclopiod obo movol upv/'oral My invenloi loelongs to ihmgsnomlclass bho velocity of tho'possing vapor, depend- Lo oi dovicss interposed bsqwoon s carburetor mg; upon fille spsoci ofilis engins. The valve @5 and so internal oombusiion 'magix-1o5 zml hasV is grefe'slwiy subsmoiolly w shown in Fig. i'oi: its objoci, *alle automatic control of s ass- 3, seing somewhat, (xmizi'sctol @bille top, os ing medium flopsndon, upon the operation of at l0, Wiih sido opomiiigs l1, s c lim 12 al, ibo vilas ongimo. 'llo this smi if@ conslss in the bottom sewing to limit ills movomsni oi" @he i5 novl oomscilovion, Mmiigomont and. comvalvs im either' dreoiiion. passage l' F07 loiisiioo of ports heroin shown and deiis oppor port is oi' omissis-milf .lyiho some soilssol; smi mofa particularly poimtefl ou'J sms is tiis'sxteiioi of tile volvo 9, ihis'ooiil in mh@ iims, imei/sd portion;siiifsfi'iiisgL down io'olpoiniy Tho pissen?, .spplicazioi is ozio of ii ssfies ebow the sloitsd'op-siiin@ :'11 wel bois sho'.

2o including my oooeoding applications Ssrifil ioduced or inoliiiol oppor Esso i3? Below 'l5 Nos. 'S- all @52,94% illispoin; the my los considerably lo. tho mwisgsg wlisloin like' rooronoo lsrgsi if desto@ iliol'ml-Eo @misled 1on clisisosws indicarle like: or ooii'espomliog @Mansions i@ upoii iii@ .upper end tliorsoi.

pggw l oicl-ihevromaising sido Wollsof @las passage. is vsical sectional View through The operation of device @swims ole- E@ the 1mois snel sxhsos manifolds oir' on m -ssbscl is substfmziolly follows: lll/ith tho imsiem engine, osnibui'otei' loe- 'Efgiiial storting; of @im on ins ai poiiizil il full. lines; i' opening' of the tliiot'tls., i s iiooming explo 5 sY section 'salan subsoiiiisllj; on 'sive mixture tli'fougli @los por@ Eis clsoo A of l and i; jili'ogli the volvo 9, @sagging ln'ougli the 85 j is perspective visw of lle pfoopoiing lsporiiolslso possimgllirouffli the 'formel fom oi xiolve; slos ll and upwmci through @he 'fs use@ i is o, pmvisl sect-ifm to l, opening l5, lienco upimclsnel coiiba'iog showing lie volvo in s @moroni iniosilon; with the lisziienl Woll oi ills passage 5,

Fig. 5 is s sectional View salmi solista@ stated. Thisissoompomfaivoigfiici smiling; im iislly 'on line, 5--5 oi Fig. 6, showing s modi mixture, and tho engins si :this poio'is ooi', lied form; and Y. begspeedscl up, mail the saillie olii' Fig. 6 is a. section taken subssntisllyon passed through saifl opoiiip; sind in commi: lino 6-6 of Fig. 5. with the hesiod wallg boing sxpsmlod sind fio In tho clwmings, 1 represents the exhaust. iglioifoughly vaporizsil mrl miirecl boiioio it so manifold of an intornal combustion engine, roaches the intakes 8. ills-ibo engine speeds i2 s, carburetor, Silla connection between tho umv 1th@ discharge opsniigs-in the Volvo loooabui'stoi' and the intake manifold, and 4 img too small to .sito loe full and complots the intake manitold. in the form shown, tho charge required, the volvo is gisclually ltofl insolito manifold` Consists of two branches by the passing miximro, gradually oponin lofi and 5? the lai/fier boing pOSiOod 'Within the 'lh branches 5 an@ llwing ze, portwn 0 exhaust manifold in a.- position to be hootefl the mixture to pass'by'cliai-roui lo lle inlay the llos gases passino' thevehrougll. lakes. At the limit of inovomens indicated 'lhs bronches 5-5 extend irom s, point unln Fig. 4i? ,the volvo occupies bho osioii dei the lootom of the control passage 7 out substantially as ilioisiii shown. 'llno soifl m5 Ward and communicate with the engins openings or slots 1l. me closed; .byoni/soi; islas-s {Pl-8. The branches 6-6 preferably with the Walls of psssagoygin-:l ibo oxtend acoss above ills upper siid/ of the port of the charge lahm, psssss ilm'viigli ila-s passage 2' in suoli mangez' that the Vapor yslvo must poss lofouglsn ills oorlogs?, ops-i3"- passing therethrough will. ifi/fiks upon lili@ mg l0; Obvlously this is 'gioia saiiiiooiii ilo? tact With the flowing air `and the two are thoroughly and ooinpletel)7 eonmeingleel, forming an explosive mixture oi the best character.

-Upon slowing down the engine or idling, When the demands are not so `great7 the vali/'e may gradually drop downsV :d to such point that the inediuin passing'through the valve and through the branches 5, is just suili cient to supply the demands oit the engine, na-lly heilig reseated in the position substantially as shown in Fig. l. i

ln actual practice l have iiouiid niy iin proved device particularly well 'litt-ed 'for use with the heavier hydrooarhons, siioh for example as kerosene, the latter thoroughly vaporized and niified with the air in the manner described.

ln the torni shown ,in and (i, the consti-notion is sulistantiallyT the saine, being slightly modified in the connection olf the passages Afrom the intake manifold to the intake ports.

As here shown, 'the branches 5---5 insteai.. of leading directly to the intake ports 8, pass up on the opposite side of the exhaust inani fold7 and are thence bent loan-lmardli"7 as at 13, across the top of 'the exhaust inanilold and thence doifnward, as at le, and at the lower end beingjeonnected to the int-alie port T prefer 'to employ a ven-- 8. ln this 'loi'in l turi or mixing; ring' 15 at or near the intake port 8 through whichthe heated charge from the passages 6 is directed, the escaping through suitable apertures formed in. the Venturi andV mixing with. that portion of the charge which has heen eondiio'ed to the intake ports 8 'through the passages :Ta 13 and 1li. l

The passing of the portion of the charge through the pipes 5 and to the intalie port in the form shown, serves to teinper the air without excessively heating the saine, 'which air is then thoroughly mixed with the vapor at a high temperature which passes t irough iilarly eileotive in the use heavie aon as fuel.

parting from the sp" 1y invention; hence do not Wish to 'he understood as hin.-

hination oit oarts here? rrangeinent and o in shown and deseril'ied9 or uses What l olairn as new and desire to by Letta i ent is: 'l ft tl@ l'i d lmohel i. n a oei iee nu iin evasori, so, an .intake inanilold provided with a. central ohaniher and with plurali-tir et' adiing` lironi the said ohainloer to the intake.

ports, in combination vi/ith a tubular vali/'e positioned YWithin and movable in said ehan oli' ine incoming charge will pass through the valve than when the engine is further .speeded up.

i2'. in a device ol the hind described, an 'taire inanit'old provided with Centra-l eh lier which is larger in cross section the lower part than near the upper partthereof, and provided with a plurality o'l passages leading; from said Chamber the inthe ports, in combination `with a tubular valve positioned in ohainoer with a iedueed opening at the top and with auxiliary openu ii' .ci at the .side thereof, the parte being arig'ed w'itl'i a clearance at the upper part e Valve when it at its loweiniost liinit fehyv in initially startingthe engine charge will Conducted through the top and through the anni npon the 'vertical nioif'einent of the Valve auxiliary openings will he'elosed.

ln testimony iwhereotj l have signed nii; naine in the presence ofi. two suhserioing witnesses.

HAR?? dll/Hill'.

"iitnesses i l-'l'oifii lill Bonfire inf invention, it

.tingl niyseli' to the eiiaot doin., oonstruotion,

ntioned. l

ly startingthe engine a larger portion f .ary openings, lout hereunto 

